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Joey Armstrong36592e32022-11-28 09:00:28 -05001# -*- makefile -*-
2# -----------------------------------------------------------------------
Joey Armstrong8388b7f2023-01-23 11:20:04 -05003# Copyright 2022-2023 Open Networking Foundation (ONF) and the ONF Contributors
Joey Armstrong36592e32022-11-28 09:00:28 -05004#
5# Licensed under the Apache License, Version 2.0 (the "License");
6# you may not use this file except in compliance with the License.
7# You may obtain a copy of the License at
8#
9# http://www.apache.org/licenses/LICENSE-2.0
10#
11# Unless required by applicable law or agreed to in writing, software
12# distributed under the License is distributed on an "AS IS" BASIS,
13# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14# See the License for the specific language governing permissions and
15# limitations under the License.
Joey Armstrong4de98b72023-02-09 14:51:38 -050016#
17# SPDX-FileCopyrightText: 2022-2023 Open Networking Foundation (ONF) and the ONF Contributors
18# SPDX-License-Identifier: Apache-2.0
Joey Armstrong36592e32022-11-28 09:00:28 -050019# -----------------------------------------------------------------------
20
Joey Armstrong4de98b72023-02-09 14:51:38 -050021$(if $(DEBUG),$(warning ENTER))
Joey Armstrong36592e32022-11-28 09:00:28 -050022
Joey Armstrong4de98b72023-02-09 14:51:38 -050023# include makefiles/constants.mk
24export dot :=.
25export null :=#
26export space := $(null) $(null)
27export quote-single := $(null)"$(null)#"
28export quote-double := $(null)'$(null)#'
29
30# [DEBUG] make {target} HIDE=
31HIDE ?= @
32
33env-clean ?= /usr/bin/env --ignore-environment
34xargs-n1 := xargs -0 -t -n1 --no-run-if-empty
35xargs-n1-clean := $(env-clean) $(xargs-n1)
36
37## -----------------------------------------------------------------------
38## Default shell:
39## o set -e enable error checking
40## o set -u report undefined errors
41## o set -o pipefail propogate shell pipeline failures.
42## -----------------------------------------------------------------------
43SHELL ?= /bin/bash
44have-shell-bash := $(filter bash,$(subst /,$(space),$(SHELL)))
45$(if $(have-shell-bash),$(null),\
46 $(eval export SHELL := bash -euo pipefail))
47
48export SHELL ?= bash -euo pipefail
49
50$(if $(DEBUG),$(warning LEAVE))
Joey Armstrong36592e32022-11-28 09:00:28 -050051
52# [EOF]